—Did you happen to see ______ black and ______ white cat?
—Are they missing? I told you to take care of them.
A. the; the B.the; 不填 C.a; 不填 D.a; the
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He gave an ______ answer to the question. (expect)
Whoever broke the window should be ______ for it. (responsibility)
We dare not play jokes on Mr. Kane lest he ______ (become) angry.
Do you regret the (choose) ______ you have made?